Progress on SDL2 backend. Very broken.
This commit is contained in:
Scott Duensing
parent
e807f883b4
commit
e6c514b0ea
10 changed files with 749 additions and 34 deletions
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@ -4,8 +4,8 @@ CONFIG -= qt
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CONFIG -= console
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CONFIG += c99
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CONFIG += BACKEND_GRX
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#CONFIG += BACKEND_SDL2
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#CONFIG += BACKEND_GRX
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CONFIG += BACKEND_SDL2
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#CONFIG += BACKEND_DJGPP
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SHARED = $$PWD/../shared
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@ -57,9 +57,12 @@ BACKEND_GRX {
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BACKEND_SDL2 {
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DEFINES += BACKEND_SDL2
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LIBS += \
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-lSDL2 \
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-lSDL2_image
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}
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BACKEND_DJGPP
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BACKEND_DJGPP {
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DEFINES += BACKEND_DJGPP
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}
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@ -1,6 +1,6 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE QtCreatorProject>
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<!-- Written by QtCreator 5.0.2, 2022-05-12T20:34:53. -->
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<!-- Written by QtCreator 5.0.2, 2022-05-25T17:14:18. -->
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<qtcreator>
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<data>
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<variable>EnvironmentId</variable>
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@ -56,6 +56,35 @@
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<value type="bool" key="EditorConfiguration.skipTrailingWhitespace">true</value>
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</valuemap>
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</data>
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<data>
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<variable>ProjectExplorer.Project.PluginSettings</variable>
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<valuemap type="QVariantMap">
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<valuemap type="QVariantMap" key="AutoTest.ActiveFrameworks">
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<value type="bool" key="AutoTest.Framework.Boost">true</value>
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<value type="bool" key="AutoTest.Framework.CTest">false</value>
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<value type="bool" key="AutoTest.Framework.Catch">true</value>
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<value type="bool" key="AutoTest.Framework.GTest">true</value>
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<value type="bool" key="AutoTest.Framework.QtQuickTest">true</value>
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<value type="bool" key="AutoTest.Framework.QtTest">true</value>
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</valuemap>
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<valuemap type="QVariantMap" key="AutoTest.CheckStates"/>
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<value type="int" key="AutoTest.RunAfterBuild">0</value>
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<value type="bool" key="AutoTest.UseGlobal">true</value>
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<valuelist type="QVariantList" key="ClangCodeModel.CustomCommandLineKey"/>
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<value type="bool" key="ClangCodeModel.UseGlobalConfig">true</value>
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<value type="QString" key="ClangCodeModel.WarningConfigId">Builtin.BuildSystem</value>
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<valuemap type="QVariantMap" key="ClangTools">
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<value type="bool" key="ClangTools.AnalyzeOpenFiles">true</value>
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<value type="bool" key="ClangTools.BuildBeforeAnalysis">true</value>
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<value type="QString" key="ClangTools.DiagnosticConfig">Builtin.DefaultTidyAndClazy</value>
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<value type="int" key="ClangTools.ParallelJobs">4</value>
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<valuelist type="QVariantList" key="ClangTools.SelectedDirs"/>
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<valuelist type="QVariantList" key="ClangTools.SelectedFiles"/>
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<valuelist type="QVariantList" key="ClangTools.SuppressedDiagnostics"/>
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<value type="bool" key="ClangTools.UseGlobalSettings">true</value>
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</valuemap>
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</valuemap>
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</data>
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<data>
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<variable>ProjectExplorer.Project.Target.0</variable>
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<valuemap type="QVariantMap">
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@ -206,12 +235,14 @@
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<valuelist type="QVariantList" key="CustomOutputParsers"/>
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<value type="int" key="PE.EnvironmentAspect.Base">2</value>
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<valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
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<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.CustomExecutableRunConfiguration</value>
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<value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey"></value>
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<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4RunConfiguration:/home/scott/code/gui/client/client.pro</value>
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<value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey">/home/scott/code/gui/client/client.pro</value>
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<value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
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<value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
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<value type="bool" key="RunConfiguration.UseLibrarySearchPath">true</value>
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<value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
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<value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
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<value type="QString" key="RunConfiguration.WorkingDirectory.default">/home/scott/code/gui/build-client-Desktop_Qt_5_15_0_GCC_64bit-Debug/bin</value>
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</valuemap>
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<value type="int" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
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</valuemap>
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@ -62,24 +62,21 @@ void guiShutdown(void) {
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hmfree(_widgetCatalog);
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wmShutdown();
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mouseShutdown();
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videoSurfaceDestroy(_mousePointer);
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videoSurfaceDestroy(__guiBackBuffer);
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videoShutdown();
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platformShutdown();
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}
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void guiStartup(int16_t width, int16_t height, int16_t depth) {
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videoStartup(width, height, depth);
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platformStartup(width, height, depth);
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__guiScreenBuffer = videoSurfaceScreenGet();
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__guiBackBuffer = videoSurfaceCreate(videoDisplayWidthGet(), videoDisplayHeightGet());
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mouseStartup();
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_mousePointer = imageLoad("mouse.png");
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_mouseTransparency = videoSurfacePixelGet(_mousePointer, videoSurfaceWidthGet(_mousePointer) - 2, 0); // Find our transparency color.
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@ -4,4 +4,125 @@
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#include "djgpp.h"
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FontT *__font8x14 = NULL;
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void fontWrite(char *message, int16_t x, int16_t y, FontT *font, ColorT foreground, ColorT background) {
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}
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SurfaceT *imageLoad(char *filename) {
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SurfaceT *image = NULL;
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return image;
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}
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void platformEventGet(EventT *event) {
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}
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void platformShutdown(void) {
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}
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void platformStartup(int16_t width, int16_t height, int16_t depth) {
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}
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uint16_t videoDisplayHeightGet(void) {
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return 0;
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}
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uint16_t videoDisplayWidthGet(void) {
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return 0;
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}
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void videoModesShow(void) {
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}
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void videoSurfaceBlit(SurfaceT *target, int16_t targetX, int16_t targetY, SurfaceT *source) {
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}
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void videoSurfaceBlitWithTransparency(SurfaceT *target, int16_t targetX, int16_t targetY, SurfaceT *source, ColorT transparent) {
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}
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void videoSurfaceClear(ColorT color) {
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}
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SurfaceT *videoSurfaceCreate(int16_t width, int16_t height) {
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SurfaceT *surface = NULL;
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return surface;
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}
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void videoSurfaceDestroy(SurfaceT *surface) {
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}
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void videoSurfaceBox(int16_t x1, int16_t y1, int16_t x2, int16_t y2, ColorT c) {
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}
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void videoSurfaceBoxFilled(int16_t x1, int16_t y1, int16_t x2, int16_t y2, ColorT c) {
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}
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int16_t videoSurfaceHeightGet(SurfaceT *surface) {
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return surface->height;
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}
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void videoSurfaceLineH(int16_t x1, int16_t y1, int16_t x, ColorT c) {
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}
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void videoSurfaceLineV(int16_t x, int16_t x2, int16_t y2, ColorT c) {
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}
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ColorT videoSurfacePixelGet(SurfaceT *surface, int16_t x, int16_t y) {
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return 0;
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}
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void videoSurfacePixelSet(int16_t x, int16_t y, ColorT c) {
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}
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void videoSurfaceSet(SurfaceT *surface) {
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}
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SurfaceT *videoSurfaceScreenGet(void) {
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return NULL;
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}
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int16_t videoSurfaceWidthGet(SurfaceT *surface) {
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return surface->width;
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}
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#endif // BACKEND_DJGPP
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@ -1,4 +1,87 @@
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#ifndef DJGPP_H
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#define DJGPP_H
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#include <stdint.h>
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#include <stdlib.h>
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typedef uint32_t ColorT;
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typedef struct SurfaceS {
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uint16_t width;
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uint16_t height;
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size_t scanline;
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size_t bytes;
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union {
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uint8_t *bits8;
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uint16_t *bits16;
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uint32_t *bits32;
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} buffer;
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} SurfaceT;
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typedef struct EventS {
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int32_t flags;
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int32_t x;
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int32_t y;
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int32_t buttons;
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int32_t key;
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int32_t kbstat;
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int32_t dtime;
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} EventT;
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typedef struct FontS {
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uint8_t width; // Width of each character in pixels.
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uint8_t height; // Height of each character in pixels.
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uint8_t span; // Number of characters per line in font data.
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uint8_t count; // Number of characters in font, minus 1.
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uint16_t widthPixels; // Width of line of font data in pixels/bits.
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uint16_t heightPixels; // Number of lines of font data in pixels/bits.
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uint8_t *bits; // Actual font bits.
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} FontT;
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#define EVENT_FLAG_KEYPRESS 1
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#define EVENT_FLAG_LEFT_DOWN 2
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#define EVENT_FLAG_LEFT_UP 4
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#define EVENT_FLAG_RIGHT_DOWN 8
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#define EVENT_FLAG_RIGHT_UP 16
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#define BUTTON_LEFT 1
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#define BUTTON_RIGHT 2
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#define META_ALT 1
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#define META_CTRL 2
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#define META_SHIFT 4
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#define KEY_ESC 27
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#define FONT_VGA_8x14 __font8x14
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extern FontT *__font8x14;
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void fontWrite(char *message, int16_t x, int16_t y, FontT *font, ColorT foreground, ColorT background);
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SurfaceT *imageLoad(char *filename);
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void platformEventGet(EventT *event);
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uint16_t videoDisplayHeightGet(void);
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uint16_t videoDisplayWidthGet(void);
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void videoSurfaceBlit(SurfaceT *target, int16_t targetX, int16_t targetY, SurfaceT *source);
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void videoSurfaceBlitWithTransparency(SurfaceT *target, int16_t targetX, int16_t targetY, SurfaceT *source, ColorT transparent);
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void videoSurfaceClear(ColorT color);
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SurfaceT *videoSurfaceCreate(int16_t width, int16_t height);
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void videoSurfaceDestroy(SurfaceT *surface);
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void videoSurfaceBox(int16_t x1, int16_t y1, int16_t x2, int16_t y2, ColorT c);
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void videoSurfaceBoxFilled(int16_t x1, int16_t y1, int16_t x2, int16_t y2, ColorT c);
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int16_t videoSurfaceHeightGet(SurfaceT *surface);
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void videoSurfaceLineH(int16_t x1, int16_t y1, int16_t x, ColorT c);
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void videoSurfaceLineV(int16_t x, int16_t x2, int16_t y2, ColorT c);
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ColorT videoSurfacePixelGet(SurfaceT *surface, int16_t x, int16_t y);
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void videoSurfacePixelSet(int16_t x, int16_t y, ColorT c);
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void videoSurfaceSet(SurfaceT *surface);
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SurfaceT *videoSurfaceScreenGet(void);
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int16_t videoSurfaceWidthGet(SurfaceT *surface);
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#endif // DJGPP_H
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@ -50,13 +50,22 @@ SurfaceT *imageLoad(char *filename) {
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}
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void mouseShutdown(void) {
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void platformShutdown(void) {
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GrMouseEraseCursor();
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GrMouseUnInit();
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GrSetMode(GR_default_text);
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}
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void mouseStartup(void) {
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void platformStartup(int16_t width, int16_t height, int16_t depth) {
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// Set up graphics environment.
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if (!GrSetMode(GR_width_height_bpp_graphics, width, height, depth)) {
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//***TODO*** Die
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}
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GrSetRGBcolorMode();
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__guiBaseColors = GrAllocEgaColors(); // This does not need released.
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// Set up mouse.
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GrMouseInit();
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GrMouseEventEnable(1, 1);
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@ -105,21 +114,6 @@ void videoModesShow(void) {
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}
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void videoShutdown(void) {
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GrSetMode(GR_default_text);
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}
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void videoStartup(int16_t width, int16_t height, int16_t depth) {
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// Set up graphics environment.
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if (!GrSetMode(GR_width_height_bpp_graphics, width, height, depth)) {
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//***TODO*** Die
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}
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GrSetRGBcolorMode();
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__guiBaseColors = GrAllocEgaColors(); // This does not need released.
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}
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void videoSurfaceBlit(SurfaceT *target, int16_t targetX, int16_t targetY, SurfaceT *source) {
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GrBitBlt(target, targetX, targetY, source, 0, 0, videoSurfaceWidthGet(source) - 1, videoSurfaceHeightGet(source) - 1, GrWRITE);
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}
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@ -2,7 +2,7 @@
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#define GRX_H
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#include "stdint.h"
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#include <stdint.h>
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#include "grx20.h"
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#include "grxkeys.h"
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@ -16,8 +16,16 @@ typedef GrFont FontT;
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#define EVENT_FLAG_KEYPRESS GR_M_KEYPRESS
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#define EVENT_FLAG_LEFT_DOWN GR_M_LEFT_DOWN
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#define EVENT_FLAG_LEFT_UP GR_M_LEFT_UP
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#define EVENT_FLAG_RIGHT_DOWN GR_M_RIGHT_DOWN
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#define EVENT_FLAG_RIGHT_UP GR_M_RIGHT_UP
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#define BUTTON_LEFT GR_M_LEFT
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#define BUTTON_RIGHT GR_M_RIGHT
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#define META_ALT GR_KB_ALT
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#define META_CTRL GR_KB_CTRL
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#define META_SHIFT GR_KB_SHIFT
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#define KEY_ESC GrKey_Escape
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@ -18,12 +18,10 @@
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#endif
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void mouseShutdown(void);
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void mouseStartup(void);
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void platformShutdown(void);
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void platformStartup(int16_t width, int16_t height, int16_t depth);
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void videoModesShow(void);
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void videoShutdown(void);
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void videoStartup(int16_t width, int16_t height, int16_t depth);
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#endif // PLATFORM_H
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@ -1,7 +1,402 @@
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#ifdef BACKEND_SDL2
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#include "linux.h"
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#include "sdl2.h"
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#define BYTES_PER_PIXEL 4
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FontT *__font8x14 = NULL;
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static SDL_Window *_window = NULL;
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static SDL_Renderer *_renderer = NULL;
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static SDL_Surface *_surface = NULL;
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static SDL_Texture *_texture = NULL;
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static uint16_t _width = 0;
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static uint16_t _height = 0;
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static uint8_t _windowScale = 1;
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static uint32_t _pixelFormat = SDL_PIXELFORMAT_RGBA8888;
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static SurfaceT *_activeSurface = NULL;
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extern ColorT *__guiBaseColors;
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#define PUTPIXEL(s,x,y,c) s->buffer.bits32[y*s->width+x]=c
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#define COLOR(r,g,b) ((r<<24)|(g<<16)|(b<<8)|255)
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void fontWrite(char *message, int16_t x, int16_t y, FontT *font, ColorT foreground, ColorT background) {
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}
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SurfaceT *imageLoad(char *filename) {
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SurfaceT *image = NULL;
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SDL_Surface *i = NULL;
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SDL_Surface *s = IMG_Load(filename);
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if (s) {
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i = SDL_ConvertSurfaceFormat(s, _pixelFormat, 0);
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if (i) {
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image = videoSurfaceCreate(s->w, s->h);
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if (image) {
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SDL_LockSurface(i);
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memcpy(image->buffer.bits8, i->pixels, image->bytes);
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SDL_UnlockSurface(i);
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}
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SDL_FreeSurface(i);
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}
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SDL_FreeSurface(s);
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}
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return image;
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}
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void platformEventGet(EventT *event) {
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SDL_Event e;
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static uint8_t ASCII = 0;
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static uint8_t debounce = 0;
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static uint8_t buttons = 0;
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static int16_t x = 0;
|
||||
static int16_t y = 0;
|
||||
|
||||
memset(event, 0, sizeof(EventT));
|
||||
|
||||
while (SDL_PollEvent(&e)) {
|
||||
switch (e.type) {
|
||||
case SDL_MOUSEMOTION:
|
||||
x = e.motion.x;
|
||||
y = e.motion.y;
|
||||
break;
|
||||
|
||||
case SDL_MOUSEBUTTONUP:
|
||||
if (e.button.button == SDL_BUTTON_LEFT) {
|
||||
buttons &= ~BUTTON_LEFT;
|
||||
event->flags |= EVENT_FLAG_LEFT_UP;
|
||||
}
|
||||
if (e.button.button == SDL_BUTTON_RIGHT) {
|
||||
buttons &= ~BUTTON_RIGHT;
|
||||
event->flags |= EVENT_FLAG_RIGHT_UP;
|
||||
}
|
||||
break;
|
||||
|
||||
case SDL_MOUSEBUTTONDOWN:
|
||||
if (e.button.button == SDL_BUTTON_LEFT) {
|
||||
buttons |= BUTTON_LEFT;
|
||||
event->flags |= EVENT_FLAG_LEFT_DOWN;
|
||||
}
|
||||
if (e.button.button == SDL_BUTTON_RIGHT) {
|
||||
buttons |= BUTTON_RIGHT;
|
||||
event->flags |= EVENT_FLAG_RIGHT_DOWN;
|
||||
}
|
||||
break;
|
||||
|
||||
case SDL_TEXTINPUT:
|
||||
ASCII = e.text.text[0]; //***TODO*** This is horrifically wrong.
|
||||
break;
|
||||
|
||||
case SDL_KEYUP:
|
||||
ASCII = 0;
|
||||
debounce = 0;
|
||||
break;
|
||||
|
||||
case SDL_KEYDOWN:
|
||||
if (debounce == 0) {
|
||||
if (e.key.keysym.scancode != 0) {
|
||||
// Not a meta key
|
||||
debounce = 1;
|
||||
if (e.key.keysym.scancode == SDL_SCANCODE_ESCAPE) ASCII = 27;
|
||||
event->key = ASCII;
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
event->x = x;
|
||||
event->y = y;
|
||||
event->buttons = buttons;
|
||||
if ((SDL_GetModState() & KMOD_ALT) != 0) event->kbstat |= META_ALT;
|
||||
if ((SDL_GetModState() & KMOD_CTRL) != 0) event->kbstat |= META_CTRL;
|
||||
if ((SDL_GetModState() & KMOD_SHIFT) != 0) event->kbstat |= META_SHIFT;
|
||||
}
|
||||
|
||||
|
||||
void platformShutdown(void) {
|
||||
|
||||
free(__guiBaseColors);
|
||||
|
||||
SDL_StopTextInput();
|
||||
|
||||
if (_texture) {
|
||||
SDL_DestroyTexture(_texture);
|
||||
_texture = NULL;
|
||||
}
|
||||
|
||||
if (_renderer) {
|
||||
SDL_DestroyRenderer(_renderer);
|
||||
_renderer = NULL;
|
||||
}
|
||||
|
||||
if (_window) {
|
||||
SDL_DestroyWindow(_window);
|
||||
_window = NULL;
|
||||
}
|
||||
|
||||
IMG_Quit();
|
||||
SDL_Quit();
|
||||
}
|
||||
|
||||
|
||||
void platformStartup(int16_t width, int16_t height, int16_t depth) {
|
||||
uint8_t i;
|
||||
uint8_t red;
|
||||
uint8_t green;
|
||||
uint8_t blue;
|
||||
|
||||
(void)depth;
|
||||
|
||||
SDL_Init(SDL_INIT_EVERYTHING);
|
||||
IMG_Init(IMG_INIT_PNG);
|
||||
|
||||
_windowScale = 3;
|
||||
|
||||
_window = SDL_CreateWindow("GUI Debug", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, width, height, SDL_WINDOW_ALLOW_HIGHDPI);
|
||||
_surface = SDL_GetWindowSurface(_window);
|
||||
_renderer = SDL_CreateRenderer(_window, -1, SDL_RENDERER_ACCELERATED);
|
||||
_texture = SDL_CreateTexture(_renderer, _pixelFormat, SDL_TEXTUREACCESS_STREAMING, width, height);
|
||||
|
||||
SDL_RenderSetLogicalSize(_renderer, width, height);
|
||||
SDL_SetWindowSize(_window, width * _windowScale, height * _windowScale);
|
||||
|
||||
_width = width;
|
||||
_height = height;
|
||||
|
||||
SDL_StartTextInput();
|
||||
|
||||
__guiBaseColors = (ColorT *)malloc(sizeof(ColorT) * 16);
|
||||
for (i=0; i<16; i++) {
|
||||
red = 85 * (((i >> 1) & 2) | ((i >> 5) & 1));
|
||||
green = 85 * (( i & 2) | ((i >> 4) & 1));
|
||||
blue = 85 * (((i << 1) & 2) | ((i >> 3) & 1));
|
||||
__guiBaseColors[i] = COLOR(red, green, blue);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
uint16_t videoDisplayHeightGet(void) {
|
||||
return _height;
|
||||
}
|
||||
|
||||
|
||||
uint16_t videoDisplayWidthGet(void) {
|
||||
return _width;
|
||||
}
|
||||
|
||||
|
||||
void videoModesShow(void) {
|
||||
// Nada
|
||||
}
|
||||
|
||||
|
||||
void videoSurfaceBlit(SurfaceT *target, int16_t targetX, int16_t targetY, SurfaceT *source) {
|
||||
uint16_t y1;
|
||||
size_t offsetTarget;
|
||||
size_t offsetSource;
|
||||
void *pixels;
|
||||
int temp;
|
||||
|
||||
// HACK! Are we copying to the screen? This assumes a full screen update.
|
||||
if (!target) {
|
||||
SDL_LockTexture(_texture, NULL, &pixels, &temp);
|
||||
memcpy(pixels, source->buffer.bits8, source->bytes);
|
||||
SDL_UnlockTexture(_texture);
|
||||
SDL_RenderCopy(_renderer, _texture, NULL, NULL);
|
||||
SDL_RenderPresent(_renderer);
|
||||
|
||||
// Throttle this to some sane frame rate.
|
||||
SDL_Delay(32);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
if (targetX == 0 && targetY == 0 && target->width == source->width && target->height == source->height) {
|
||||
// Direct blit of entire surface.
|
||||
memcpy(target->buffer.bits8, source->buffer.bits8, source->bytes);
|
||||
} else {
|
||||
// Blit into larger surface.
|
||||
offsetTarget = targetY * _activeSurface->scanline + targetX * BYTES_PER_PIXEL;
|
||||
offsetSource = 0;
|
||||
for (y1=targetY; y1<targetY+source->height; y1++) {
|
||||
memcpy(&target->buffer.bits8[offsetTarget], &source->buffer.bits8[offsetSource], source->scanline);
|
||||
offsetTarget += target->scanline;
|
||||
offsetSource += source->scanline;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void videoSurfaceBlitWithTransparency(SurfaceT *target, int16_t targetX, int16_t targetY, SurfaceT *source, ColorT transparent) {
|
||||
uint16_t x1;
|
||||
uint16_t y1;
|
||||
uint16_t x2 = source->width;
|
||||
uint16_t y2 = source->height;
|
||||
ColorT pixel;
|
||||
|
||||
// Clip on right and bottom
|
||||
if (targetX + x2 > target->width) x2 -= targetX + x2 - target->width;
|
||||
if (targetY + y2 > target->height) y2 -= targetY + y2 - target->height;
|
||||
|
||||
for (y1=0; y1<y2; y1++) {
|
||||
for (x1=0; x1<x2; x1++) {
|
||||
pixel = source->buffer.bits32[y1 * source->width + x1];
|
||||
if (transparent != pixel) {
|
||||
PUTPIXEL(target, targetX + x1, targetY + y1, pixel);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
void videoSurfaceClear(ColorT color) {
|
||||
uint16_t x;
|
||||
size_t offsetTarget;
|
||||
|
||||
// Draw the top line.
|
||||
for (x=0; x<_activeSurface->width; x++) {
|
||||
PUTPIXEL(_activeSurface, x, 0, color);
|
||||
}
|
||||
|
||||
// Copy it to the other lines.
|
||||
offsetTarget = _activeSurface->scanline;
|
||||
for (x=1; x<_activeSurface->height; x++) {
|
||||
memcpy(&_activeSurface->buffer.bits8[offsetTarget], &_activeSurface->buffer.bits8[0], _activeSurface->scanline);
|
||||
offsetTarget += _activeSurface->scanline;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
SurfaceT *videoSurfaceCreate(int16_t width, int16_t height) {
|
||||
SurfaceT *surface = (SurfaceT *)malloc(sizeof(SurfaceT));
|
||||
|
||||
if (!surface) return NULL;
|
||||
|
||||
surface->width = width;
|
||||
surface->height = height;
|
||||
surface->scanline = width * BYTES_PER_PIXEL;
|
||||
surface->bytes = surface->scanline * height;
|
||||
|
||||
surface->buffer.bits8 = malloc(surface->bytes);
|
||||
if (!surface->buffer.bits8) {
|
||||
free(surface);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
memset(surface->buffer.bits8, 0, surface->bytes);
|
||||
|
||||
return surface;
|
||||
}
|
||||
|
||||
|
||||
void videoSurfaceDestroy(SurfaceT *surface) {
|
||||
free(surface->buffer.bits8);
|
||||
free(surface);
|
||||
}
|
||||
|
||||
|
||||
void videoSurfaceBox(int16_t x1, int16_t y1, int16_t x2, int16_t y2, ColorT c) {
|
||||
videoSurfaceLineH(x1, x2, y1, c);
|
||||
videoSurfaceLineH(x1, x2, y2, c);
|
||||
videoSurfaceLineV(x1, y1, y2, c);
|
||||
videoSurfaceLineV(x2, y1, y2, c);
|
||||
}
|
||||
|
||||
|
||||
void videoSurfaceBoxFilled(int16_t x1, int16_t y1, int16_t x2, int16_t y2, ColorT c) {
|
||||
uint16_t x;
|
||||
size_t offsetTarget;
|
||||
uint16_t width = x2 - x1;
|
||||
|
||||
// Draw the top line.
|
||||
for (x=x1; x<=x2; x++) {
|
||||
PUTPIXEL(_activeSurface, x, 0, c);
|
||||
}
|
||||
|
||||
// Copy it to the other lines.
|
||||
offsetTarget = _activeSurface->scanline;
|
||||
for (x=y1; x<=y2; x++) {
|
||||
memcpy(&_activeSurface->buffer.bits8[offsetTarget], &_activeSurface->buffer.bits8[0], width * BYTES_PER_PIXEL);
|
||||
offsetTarget += _activeSurface->scanline;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
int16_t videoSurfaceHeightGet(SurfaceT *surface) {
|
||||
return surface->height;
|
||||
}
|
||||
|
||||
|
||||
void videoSurfaceLineH(int16_t x1, int16_t x2, int16_t y, ColorT c) {
|
||||
int16_t i;
|
||||
int16_t t;
|
||||
|
||||
if (x1 > x2) {
|
||||
t = x2;
|
||||
x2 = x1;
|
||||
x1 = t;
|
||||
}
|
||||
|
||||
for (i=x1; i<=x2; i++) {
|
||||
PUTPIXEL(_activeSurface, i, y, c);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void videoSurfaceLineV(int16_t x, int16_t y1, int16_t y2, ColorT c) {
|
||||
int16_t i;
|
||||
int16_t t;
|
||||
|
||||
if (y1 > y2) {
|
||||
t = y2;
|
||||
y2 = y1;
|
||||
y1 = t;
|
||||
}
|
||||
|
||||
for (i=y1; i<=y2; i++) {
|
||||
PUTPIXEL(_activeSurface, x, i, c);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
ColorT videoSurfacePixelGet(SurfaceT *surface, int16_t x, int16_t y) {
|
||||
return surface->buffer.bits32[y * surface->width + x];
|
||||
}
|
||||
|
||||
|
||||
void videoSurfacePixelSet(int16_t x, int16_t y, ColorT c) {
|
||||
PUTPIXEL(_activeSurface, x, y, c);
|
||||
}
|
||||
|
||||
|
||||
void videoSurfaceSet(SurfaceT *surface) {
|
||||
_activeSurface = surface;
|
||||
}
|
||||
|
||||
|
||||
SurfaceT *videoSurfaceScreenGet(void) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
int16_t videoSurfaceWidthGet(SurfaceT *surface) {
|
||||
return surface->width;
|
||||
}
|
||||
|
||||
|
||||
#endif // BACKEND_SDL2
|
||||
|
|
|
|||
|
|
@ -1,4 +1,89 @@
|
|||
#ifndef SDL2_H
|
||||
#define SDL2_H
|
||||
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
#include <SDL2/SDL.h>
|
||||
#include <SDL2/SDL_image.h>
|
||||
|
||||
|
||||
typedef uint32_t ColorT;
|
||||
|
||||
typedef struct SurfaceS {
|
||||
uint16_t width;
|
||||
uint16_t height;
|
||||
size_t scanline;
|
||||
size_t bytes;
|
||||
union {
|
||||
uint8_t *bits8;
|
||||
uint16_t *bits16;
|
||||
uint32_t *bits32;
|
||||
} buffer;
|
||||
} SurfaceT;
|
||||
|
||||
typedef struct EventS {
|
||||
int32_t flags;
|
||||
int32_t x;
|
||||
int32_t y;
|
||||
int32_t buttons;
|
||||
int32_t key;
|
||||
int32_t kbstat;
|
||||
int32_t dtime;
|
||||
} EventT;
|
||||
|
||||
typedef struct FontS {
|
||||
uint8_t width; // Width of each character in pixels.
|
||||
uint8_t height; // Height of each character in pixels.
|
||||
uint8_t span; // Number of characters per line in font data.
|
||||
uint8_t count; // Number of characters in font, minus 1.
|
||||
uint16_t widthPixels; // Width of line of font data in pixels/bits.
|
||||
uint16_t heightPixels; // Number of lines of font data in pixels/bits.
|
||||
uint8_t *bits; // Actual font bits.
|
||||
} FontT;
|
||||
|
||||
|
||||
#define EVENT_FLAG_KEYPRESS 1
|
||||
#define EVENT_FLAG_LEFT_DOWN 2
|
||||
#define EVENT_FLAG_LEFT_UP 4
|
||||
#define EVENT_FLAG_RIGHT_DOWN 8
|
||||
#define EVENT_FLAG_RIGHT_UP 16
|
||||
|
||||
#define BUTTON_LEFT 1
|
||||
#define BUTTON_RIGHT 2
|
||||
|
||||
#define META_ALT 1
|
||||
#define META_CTRL 2
|
||||
#define META_SHIFT 4
|
||||
|
||||
#define KEY_ESC 27
|
||||
|
||||
#define FONT_VGA_8x14 (*__font8x14)
|
||||
|
||||
|
||||
extern FontT *__font8x14;
|
||||
|
||||
|
||||
void fontWrite(char *message, int16_t x, int16_t y, FontT *font, ColorT foreground, ColorT background);
|
||||
SurfaceT *imageLoad(char *filename);
|
||||
void platformEventGet(EventT *event);
|
||||
uint16_t videoDisplayHeightGet(void);
|
||||
uint16_t videoDisplayWidthGet(void);
|
||||
void videoSurfaceBlit(SurfaceT *target, int16_t targetX, int16_t targetY, SurfaceT *source);
|
||||
void videoSurfaceBlitWithTransparency(SurfaceT *target, int16_t targetX, int16_t targetY, SurfaceT *source, ColorT transparent);
|
||||
void videoSurfaceClear(ColorT color);
|
||||
SurfaceT *videoSurfaceCreate(int16_t width, int16_t height);
|
||||
void videoSurfaceDestroy(SurfaceT *surface);
|
||||
void videoSurfaceBox(int16_t x1, int16_t y1, int16_t x2, int16_t y2, ColorT c);
|
||||
void videoSurfaceBoxFilled(int16_t x1, int16_t y1, int16_t x2, int16_t y2, ColorT c);
|
||||
int16_t videoSurfaceHeightGet(SurfaceT *surface);
|
||||
void videoSurfaceLineH(int16_t x1, int16_t x2, int16_t y, ColorT c);
|
||||
void videoSurfaceLineV(int16_t x, int16_t y1, int16_t y2, ColorT c);
|
||||
ColorT videoSurfacePixelGet(SurfaceT *surface, int16_t x, int16_t y);
|
||||
void videoSurfacePixelSet(int16_t x, int16_t y, ColorT c);
|
||||
void videoSurfaceSet(SurfaceT *surface);
|
||||
SurfaceT *videoSurfaceScreenGet(void);
|
||||
int16_t videoSurfaceWidthGet(SurfaceT *surface);
|
||||
|
||||
|
||||
#endif // SDL2_H
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue