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DS GX: Clear depth

This commit is contained in:
Vicki Pfau 2017-07-17 14:49:32 -07:00
parent 8322117aab
commit 6509c4fffa
5 changed files with 12 additions and 5 deletions
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1
CHANGES
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@ -1,6 +1,7 @@
medusa alpha 3 (Future)
Features:
- DS GX: Toon shading
- DS GX: Clear depth
Bugfixes:
- DS GX: Fix vertex texture transformation (fixes mgba.io/i/702)
- DS GX: Automatically normalize winding culling calculations (fixes mgba.io/i/699)

1
README.md
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@ -182,7 +182,6 @@ Missing features on DS are
- Edge marking/wireframe
- Highlight shading
- Fog
- Clear depth
- Anti-aliasing
- Alpha test
- Position test

1
include/mgba/internal/ds/gx/software.h
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@ -95,6 +95,7 @@ struct DSGXSoftwareRenderer {
int sort;
uint16_t clearStencil;
color_t clearColor;
uint32_t clearDepth;
bool flushPending;
struct DSGXVertex* verts;

1
src/ds/gx.c
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@ -1326,6 +1326,7 @@ void DSGXReset(struct DSGX* gx) {
gx->currentPoly.polyParams = 0x001F00C0;
gx->nextPoly.polyParams = 0x001F00C0;
gx->dmaSource = -1;
gx->renderer->reset(gx->renderer);
}
void DSGXAssociateRenderer(struct DSGX* gx, struct DSGXRenderer* renderer) {

13
src/ds/gx/software.c
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@ -440,6 +440,7 @@ static void DSGXSoftwareRendererReset(struct DSGXRenderer* renderer) {
struct DSGXSoftwareRenderer* softwareRenderer = (struct DSGXSoftwareRenderer*) renderer;
softwareRenderer->clearColor = 0;
softwareRenderer->clearStencil = 0;
softwareRenderer->clearDepth = 0xFFFFFF;
}
static void DSGXSoftwareRendererDeinit(struct DSGXRenderer* renderer) {
@ -738,12 +739,13 @@ static void DSGXSoftwareRendererSetRAM(struct DSGXRenderer* renderer, struct DSG
color_t clearColor = softwareRenderer->clearColor;
uint16_t clearStencil = softwareRenderer->clearStencil;
uint32_t clearDepth = softwareRenderer->clearDepth;
for (i = 0; i < DS_VIDEO_VERTICAL_PIXELS * DS_VIDEO_HORIZONTAL_PIXELS ; i += 4) {
softwareRenderer->depthBuffer[i] = INT32_MAX;
softwareRenderer->depthBuffer[i + 1] = INT32_MAX;
softwareRenderer->depthBuffer[i + 2] = INT32_MAX;
softwareRenderer->depthBuffer[i + 3] = INT32_MAX;
softwareRenderer->depthBuffer[i] = clearDepth;
softwareRenderer->depthBuffer[i + 1] = clearDepth;
softwareRenderer->depthBuffer[i + 2] = clearDepth;
softwareRenderer->depthBuffer[i + 3] = clearDepth;
softwareRenderer->scanlineCache[i] = clearColor;
softwareRenderer->scanlineCache[i + 1] = clearColor;
softwareRenderer->scanlineCache[i + 2] = clearColor;
@ -816,5 +818,8 @@ static void DSGXSoftwareRendererWriteRegister(struct DSGXRenderer* renderer, uin
softwareRenderer->clearColor |= (value & 0x001F) << 27;
softwareRenderer->clearStencil = (value & 0x3F00) >> 8;
break;
case DS9_REG_CLEAR_DEPTH:
softwareRenderer->clearDepth = (value & 0x7FFF) * 0x200 + 0x1FF;
break;
}
}