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GBA Video: Finish GL mode 0 renderer

This commit is contained in:
Vicki Pfau 2019-05-10 11:10:21 -07:00
parent b86857696a
commit 1a04532d4b
1 changed files with 25 additions and 14 deletions
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39
src/gba/renderers/gl.c
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@ -88,12 +88,17 @@ static const char* const _renderMode0 =
"uniform sampler2D palette;\n"
"uniform int screenBase;\n"
"uniform int charBase;\n"
"uniform int size;\n"
"uniform ivec2 offset;\n"
"vec4 renderTile(int tile, int tileBase, int paletteId, ivec2 localCoord);\n"
"void main() {\n"
" ivec2 coord = (ivec2(texCoord) + offset) & 255;\n"
" ivec2 coord = ivec2(texCoord) + offset;\n"
" if ((size & 1) == 1) {\n"
" coord.y += coord.x & 256;\n"
" }\n"
" coord.x &= 255;\n"
" int mapAddress = screenBase + (coord.x >> 3) + (coord.y >> 3) * 32;\n"
" vec4 map = texelFetch(vram, ivec2(mapAddress & 255, mapAddress >> 8), 0);\n"
" int flags = int(map.g * 15.9);\n"
@ -521,6 +526,14 @@ void GBAVideoGLRendererDrawScanline(struct GBAVideoRenderer* renderer, int y) {
}
glRenderer->vramDirty = 0;
uint32_t backdrop = M_RGB5_TO_RGB8(renderer->palette[0]);
glClearColor(((backdrop >> 16) & 0xFF) / 256., ((backdrop >> 8) & 0xFF) / 256., (backdrop & 0xFF) / 256., 0.f);
glBindFramebuffer(GL_FRAMEBUFFER, glRenderer->fbo[1]);
glEnable(GL_SCISSOR_TEST);
glScissor(0, y, GBA_VIDEO_HORIZONTAL_PIXELS, 1);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
unsigned priority;
for (priority = 0; priority < 4; ++priority) {
if (TEST_LAYER_ENABLED(0) && GBARegisterDISPCNTGetMode(glRenderer->dispcnt) < 2) {
@ -574,16 +587,6 @@ void GBAVideoGLRendererFinishFrame(struct GBAVideoRenderer* renderer) {
glBindFramebuffer(GL_FRAMEBUFFER, glRenderer->fbo[1]);
glPixelStorei(GL_PACK_ROW_LENGTH, glRenderer->outputBufferStride);
glReadPixels(0, 0, GBA_VIDEO_HORIZONTAL_PIXELS, GBA_VIDEO_VERTICAL_PIXELS, GL_RGBA, GL_UNSIGNED_BYTE, glRenderer->outputBuffer);
glClearColor(1.f, 1.f, 1.f, 0.f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBindFramebuffer(GL_FRAMEBUFFER, glRenderer->bg[0].fbo);
glClear(GL_COLOR_BUFFER_BIT);
glBindFramebuffer(GL_FRAMEBUFFER, glRenderer->bg[1].fbo);
glClear(GL_COLOR_BUFFER_BIT);
glBindFramebuffer(GL_FRAMEBUFFER, glRenderer->bg[2].fbo);
glClear(GL_COLOR_BUFFER_BIT);
glBindFramebuffer(GL_FRAMEBUFFER, glRenderer->bg[3].fbo);
glClear(GL_COLOR_BUFFER_BIT);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
}
@ -669,9 +672,16 @@ static void GBAVideoGLRendererWriteBLDCNT(struct GBAVideoGLRenderer* renderer, u
}
void GBAVideoGLRendererDrawBackgroundMode0(struct GBAVideoGLRenderer* renderer, struct GBAVideoGLBackground* background, int y) {
int inY = y + background->y;
int yBase = inY & 0xFF;
if (background->size == 2) {
yBase += inY & 0x100;
} else if (background->size == 3) {
yBase += (inY & 0x100) << 1;
}
glBindFramebuffer(GL_FRAMEBUFFER, background->fbo);
glViewport(0, 0, GBA_VIDEO_HORIZONTAL_PIXELS, GBA_VIDEO_VERTICAL_PIXELS);
glScissor(0, 1, GBA_VIDEO_HORIZONTAL_PIXELS, 1);
glScissor(0, y, GBA_VIDEO_HORIZONTAL_PIXELS, 1);
glUseProgram(renderer->bgProgram[background->multipalette ? 1 : 0]);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, renderer->vramTex);
@ -682,14 +692,15 @@ void GBAVideoGLRendererDrawBackgroundMode0(struct GBAVideoGLRenderer* renderer,
glUniform1i(2, 1);
glUniform1i(3, background->screenBase);
glUniform1i(4, background->charBase);
glUniform2i(5, background->x, background->y);
glUniform1i(5, background->size);
glUniform2i(6, background->x, yBase - y);
glVertexAttribPointer(0, 2, GL_INT, GL_FALSE, 0, _vertices);
glEnableVertexAttribArray(0);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glBindFramebuffer(GL_FRAMEBUFFER, renderer->fbo[1]);
glViewport(0, 0, GBA_VIDEO_HORIZONTAL_PIXELS, GBA_VIDEO_VERTICAL_PIXELS);
glScissor(0, 1, GBA_VIDEO_HORIZONTAL_PIXELS, 1);
glScissor(0, y, GBA_VIDEO_HORIZONTAL_PIXELS, 1);
glDepthFunc(GL_LESS);
glEnable(GL_DEPTH_TEST);
glUseProgram(renderer->compositeProgram);