114 lines
3.2 KiB
C
114 lines
3.2 KiB
C
/**
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* Copyright (c) 2026 Dominic Masters
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*
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* This software is released under the MIT License.
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* https://opensource.org/licenses/MIT
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*/
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#include "display/display.h"
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#include "util/memory.h"
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#include "engine/engine.h"
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errorret_t displayInitDolphin(void) {
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VIDEO_Init();
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DISPLAY.screenMode = VIDEO_GetPreferredMode(NULL);
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DISPLAY.frameBuffer[0] = MEM_K0_TO_K1(
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SYS_AllocateFramebuffer(DISPLAY.screenMode)
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);
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if(DISPLAY.frameBuffer[0] == NULL) {
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errorThrow("Failed to allocate framebuffer");
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}
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DISPLAY.frameBuffer[1] = MEM_K0_TO_K1(
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SYS_AllocateFramebuffer(DISPLAY.screenMode)
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);
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if(DISPLAY.frameBuffer[1] == NULL) {
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errorThrow("Failed to allocate framebuffer");
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}
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VIDEO_Configure(DISPLAY.screenMode);
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VIDEO_SetNextFramebuffer(DISPLAY.frameBuffer[DISPLAY.whichFrameBuffer]);
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// VIDEO_SetPostRetraceCallback(copy_buffers);
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VIDEO_SetBlack(FALSE);
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VIDEO_Flush();
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VIDEO_WaitVSync();
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if(DISPLAY.screenMode->viTVMode & VI_NON_INTERLACE) VIDEO_WaitVSync();
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DISPLAY.fifoBuffer = memalign(32, DISPLAY_DOLPHIN_FIFO_SIZE);
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if(DISPLAY.fifoBuffer == NULL) {
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errorThrow("Failed to allocate FIFO buffer");
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}
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memoryZero(DISPLAY.fifoBuffer, DISPLAY_DOLPHIN_FIFO_SIZE);
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GX_Init(DISPLAY.fifoBuffer, DISPLAY_DOLPHIN_FIFO_SIZE);
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// This seems to be mostly related to interlacing vs progressive
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GX_SetViewport(
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0, 0,
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DISPLAY.screenMode->fbWidth, DISPLAY.screenMode->efbHeight,
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0, 1
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);
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float_t yscale = GX_GetYScaleFactor(
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DISPLAY.screenMode->efbHeight, DISPLAY.screenMode->xfbHeight
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);
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uint32_t xfbHeight = GX_SetDispCopyYScale(yscale);
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GX_SetScissor(
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0, 0,
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DISPLAY.screenMode->fbWidth, DISPLAY.screenMode->efbHeight
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);
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GX_SetDispCopySrc(
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0, 0,
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DISPLAY.screenMode->fbWidth, DISPLAY.screenMode->efbHeight
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);
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GX_SetDispCopyDst(DISPLAY.screenMode->fbWidth, xfbHeight);
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GX_SetCopyFilter(
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DISPLAY.screenMode->aa,
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DISPLAY.screenMode->sample_pattern,
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GX_TRUE,
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DISPLAY.screenMode->vfilter
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);
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GX_SetFieldMode(
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DISPLAY.screenMode->field_rendering,
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(
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(DISPLAY.screenMode->viHeight == 2 * DISPLAY.screenMode->xfbHeight) ?
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GX_ENABLE :
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GX_DISABLE
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)
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);
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// Setup cull modes
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GX_SetCullMode(GX_CULL_NONE);
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GX_SetBlendMode(GX_BM_BLEND, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_CLEAR);
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GX_SetZMode(GX_TRUE, GX_ALWAYS, GX_FALSE);
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GX_SetDispCopyGamma(GX_GM_1_0);
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GX_SetColorUpdate(GX_TRUE);
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// Describe mesh vertex format.
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GX_ClearVtxDesc();
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GX_SetVtxDesc(GX_VA_POS, GX_INDEX16);
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GX_SetVtxDesc(GX_VA_CLR0, GX_INDEX16);
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GX_SetVtxDesc(GX_VA_TEX0, GX_INDEX16);
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GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XYZ, GX_F32, 0);
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GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0);
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GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
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errorOk();
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}
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errorret_t displayUpdateDolphin(void) {
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ENGINE.running = SYS_MainLoop();
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errorOk();
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}
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errorret_t displaySwapDolphin(void) {
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GX_DrawDone();
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DISPLAY.whichFrameBuffer ^= 1;
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// GX_SetZMode(GX_TRUE, GX_LEQUAL, GX_TRUE);
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// GX_SetColorUpdate(GX_TRUE);
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GX_CopyDisp(DISPLAY.frameBuffer[DISPLAY.whichFrameBuffer], GX_TRUE);
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VIDEO_SetNextFramebuffer(DISPLAY.frameBuffer[DISPLAY.whichFrameBuffer]);
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VIDEO_Flush();
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VIDEO_WaitVSync();
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errorOk();
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} |